Cover for protecting component from shear force

• US 8,499,628 B2
• Filed: 06/10/2010
• Issued: 08/06/2013
• Est. Priority Date: 03/29/2004
• Status: Active Grant

• Current Assignee: Hottinger Bruel & Kjaer Incorporated
• Original Assignee: Lord Corporation (Parker-Hannifin Corporation)
• Inventors: Arms, Steven W., Townsend, Christoper P., Mundell, Steven W., Churchill, David L.
• Primary Examiner(s): Caputo, Lisa
• Assistant Examiner(s): ROY, PUNAM P
• Application Number:
  US12/797,705
• Publication Number:
  US 20100300210A1
• Time in Patent Office: 1,153 Days
• Field of Search: 737/76, 737/65, 737/86, 734/31
• US Class Current: 73/431
• CPC Class Codes: G01B 7/16 for measuring the deformation in a solid, e.g. by resistance strain gauge
• CPC Class Codes: G01B 7/20 formed by printed-circuit technique
• CPC Class Codes: G01L 1/2268 Arrangements for correcting or for compensating unwanted effects
• CPC Class Codes: G01L 1/26 Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
• CPC Class Codes: G01M 5/0083 by measuring variation of impedance, e.g. resistance, capacitance, induction
• CPC Class Codes: G01N 27/223 for determining moisture content, e.g. humidity rain detectors on vehicle windows B60S1/0825
• CPC Class Codes: G01N 33/442 Resins; Plastics

Abstract

A system includes a structure and a component. The component including an energy providing device and a protective cover. The structure has a structure surface. The protective cover has a protective cover attachment surface mounted on the structure surface. The energy providing device is located within the protective cover. The protective cover has a protective cover outer surface. The protective cover outer surface is oriented to face a first direction from which an impact load may strike the protective cover outer surface and shear the protective cover from the structure surface. The protective cover outer surface has an outer surface shape facing the first direction. At least a portion of an impact load striking any region of the protective cover outer surface facing the first direction is transferred by the outer surface shape into a compression load.

Claims

1. A system for mounting on a structure having a structure surface, said system comprising:

an energy providing device;

a sensor;

a transmitter; and

a protective cover having an outer surface and sidewalls, wherein said protective cover is mounted to the structure surface, said protective cover having a penetration extending therethrough, wherein said sensor and said transmitter are positioned within said protective covering, wherein said sensor is a strain sensor and is adhesively mounted to said structure surface within said protective cover with a light curable adhesive;

wherein said sidewalls have a shape selected from the group consisting of (a) a rounded convex outer surface, wherein said rounded convex outer surface extends from the structure surface, (b) a tilted sidewall, wherein each said tilted sidewall extends toward each other from the structure surface, and (c) combinations thereof.

2. The system as recited in claim 1,wherein said energy providing device includes a battery.

3. The system as recited in claim 2, wherein said battery is sealed within said protective cover.

4. The system as recited in claim 2, wherein said battery is replaceably sealed within said protective cover.

5. The system as recited in claim 4, wherein said seal includes an o-ring.

6. The system as recited in claim 1, wherein said energy providing device includes an energy harvesting device.

7. The system as recited in claim 1, further comprising a moisture sensor within said protective cover.

8. The system as recited in claim 1, further comprising a moisture barrier within said protective cover.

9. The system as recited in claim 8, wherein said moisture barrier comprises a wax material.

10. The system as recited in claim 9, wherein said wax material substantially fills said protective cover.

11. The system as recited in claim 8, wherein said moisture barrier comprises a thin layer of material.

12. The system as recited in claim 8, wherein said moisture barrier comprises a foam material.

13. The system as recited in claim 1, wherein said protective cover includes an attachment surface, wherein said attachment surface is adhesively mounted to the structure surface.

14. The system as recited in claim 1, further comprising said structure and a component, wherein said component includes:

a strain sensor; and

a transmitter, wherein said structure is subject to strain from a mechanical force other than that provided by said component;

wherein said strain sensor is adhesively mounted on said structure surface within said protective cover for determining said strain from said mechanical force;

wherein said transmitter is within said protective cover;

wherein a moisture barrier is located on said strain sensor within said protective cover.

15. The system as recited in claim 14, wherein said energy providing device includes a battery.

16. The system as recited in claim 14, wherein said protective cover includes an attachment surface, wherein said attachment surface is adhesively mounted to the structure surface.

17. The system as recited in claim 1, wherein said protective cover is a preformed protective cover.

18. The system as recited in claim 17, wherein said preformed protective cover includes a vent to provide pressure equalization without allowing moisture to pass.

19. The system as recited in claim 1, further comprising:

a structure surface planar portion, said structure planar portion part of said structure surface; and

a protective cover attachment surface, said protective cover attachment surface part of said protective cover and having an attachment surface planar portion, said attachment surface planar portion is mounted on said structure surface planar portion.

20. The device, as recited in claim 1, wherein said strain sensor is mounted with a UV light curable adhesive.

21. The device, as recited in claim 20, wherein said strain sensor is mounted on a backing wherein said backing transmits UV light.

22. The device, as recited in claim 21, wherein said backing includes fiberglass.

23. The device, as recited in claim 22, further comprising a bonding pad on said backing for providing electrical contact to said strain gauge, wherein said bonding pad is selected from the group consisting of a window and a stripe for facilitating UV light transmission to said UV light curable adhesive.